Method of making gas burners



G. F. REZNOR METHOD OF MAKING GAS BURNERS Filed May 2, 1925 Dec. 1924. 1,519,010

I I O mmvron 'ATTORNEY Patented Dec. 9, 1924.

UNITED STATES GEORGE FOSTER REZNOR, OF MERCER, PENNSYLVANIA.

METHOD 0 F MAKING GAS BURNERS.

Application filed May 2,

T 0 all whom it may concern:

Be it known that I, GEORGE Fosrnn Rnz- NOR, a citizen of the United States, residing at Mercer, in the county of Mercer and State of Pennsylvania, have invented new and use ful Improvements in Methods of Making Gas Burners, of which the following is a specification.

My invention relates to methods of making gas burners.

One type of gas burner for heating stoves comprises a metal burner tube containing a series of openings in which burner-tips are positioned. Many means have been employed for making the burner-tips have a gas-tight fit in the burner tube and for holding the tips in place. It is the object of the presentinvention to provide a gas-burner of the type just mentioned which will maintain the burner-tips rigidly in place with a gas-tight lit, and to provide a method of doing the same.

Referring to the accompanying drawing, Fig. 1 is a longitudinal section of a burnertube and its support, the upsetting mandrel for the burner-tips being shown in side elevation, and some of the burner-tips being shown in elevation and some in section, and parts being broken away. Fig. 2 is a crosssection of Fig. 1 on the line II1T. Fig.

is an enlarged side elevation of a burnertip in its original condition. Fig. 4 is an enlarged View of a burner-tip after it has been secured in the burner-tube. a partof which is shown in section.

On the drawing 1 designates a burnertube which may be a length of steel pipe provided with a series of holes or perforations 2, containing the burner-tips 3, each with a central passage at communicating with the interior passage 5 in the tube.

In the manufacture of the burner I punch or otherwise make the holes 2. and place the tube in a trough-like support or exterior mandrel 6 preferably fitting the tube and resting at each end on a suit-ablebase or block 7, only one shown. 8 is an interior mandrel for the tube and comprises a steel bar having thereon the dull wedge or knife-edge 9. The mandrel 8 lies on the bottom of the tube 1923. Serial NO. 636,113.

1, and may be screwed into the block 7 to prevent endwise movement thereof.

The tube 1 is arranged so that a hole 2 will be directly over the edge of the wedge. The mandrel-radius which includes the edge of the wedge 9 will lie in that tube-radius which is in alinement with the center of the hole 2, as shown in Figs. 1 and 2. A burnertip 3 which is slightly tapered is inserted into the hole 2 with its larger end outward. The tip is then driven inwardly with its inner end on the wedge 9. As itis driven in the inner end of the tip is upset somewhat and at the same time it is split, as shown at 10, thereby causing the metal of the tip to flow and spread laterally so as to make the part just below the inner wall of the tube slightly larger than the hole 2 and thereby hold the tip immovably in place. The driving of the tapered tip into the hole 2 will cause the tip to fit the hole 2 tightly, and the upsetting and splitting of the tip will tend to make the fit of the tip tighter.

In practice, the tube 1 will he slipped on the internal mandrel 8 until the wedge is under the right-hand hole 2. After the tip 3 has been secured in the hole as described, the tube 1 is pulled to the rightuntil the sec-- ond hole 2 is over the wedge and the second tip is inserted in the hole and tightly secured therein. This method is followed for the remaining holes in regular order.

In the drawing the two right hand tips are shown in elevation and secured in place; the next tip is shown in vertical section and secured in place; the the fourth tip is shown in combination with the wedge at the conclusion of the tip-securing operation.

I claim The method of making burners which con- I sists in telescoping a perforated metal tube over an internal mandrel having a wedge and then driving tapered metal burner-tips lengthwise in the perforations and on the wedge so as to split and upset the inner ends of the tips, thereby expanding the tips laterally at the inner ends of the perforations.

In testimony whereof, I hereunto affix my signature this 30th day of April 1923.

GEORGE FOSTER REZNOR. 

